Characteristics of Life

Life is -
1 - Made up of cells
Cells are the basic unit of life. Living things are composed of cells.
2- Cellular Organization
Living things are able to organize simple things into complex things. Humans can organize cells that are alike into tissues and organs.
3 - The Chemicals of Life
Living cells are composed of similar chemicals, water, carbohydrates, proteins, lipids, and nucleic acids.
4 - Energy Use
Living things use energy to repair and function -- your brain cells are using energy right now.
5 - Response to Surroundings
Living things react to changes in environment. Populations evolve over time. You respond to your surroundings when you are startled by a car horn.
6 - Growth and Development
Living things grow from the energy found in organic molecules and develop, becoming more complex over time.
7 - Reproduction
Living things duplicate their genetic code and produce offspring.
Steven Hawking is on record as saying that viruses can be considered a form of life.

Considering the list above, what might be his evidence?
A) Item 5
B) Items 1 - 3
C) Items 4 - 7
D) Items 1 & 2

The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

How will you manage your time to accomplish the necessary tasks both on the job and at home?

50 points! which of the following is an inference? a burning candle is extinguished when it is covered with a jar. the candle burns longer than expected in a jar that has a plant in it. a plant lives longer than expected in a jar that has a burning candle. there is more oxygen in the jar because there is a plant in it.